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Temperature Converter
Convert between Celsius and Fahrenheit for aquarium temperatures
Most common in Europe, Asia, and scientific contexts
Commonly used in the United States
Aquarium Temperature Ranges
Cold Water
10-20°C (50-68°F)Goldfish, White Cloud Mountain Minnows, Rosy Barbs
Tropical (Standard)
24-26°C (75-79°F)Most community fish: Tetras, Guppies, Corydoras, Rasboras, Platies
Warm Tropical
26-28°C (79-82°F)Discus, Angelfish, many Cichlids, Bettas, some Gouramis
Very Warm
28-30°C (82-86°F)Discus (breeding), some African Cichlids, specialist species
Conversion Formulas
Celsius to Fahrenheit
°F = (°C × 9/5) + 32
Example: 25°C = (25 × 9/5) + 32 = 77°F
Fahrenheit to Celsius
°C = (°F - 32) × 5/9
Example: 77°F = (77 - 32) × 5/9 = 25°C
Temperature Management Tips
- •Stability is key: Avoid temperature swings greater than 2°C (4°F) per day
- •Use a quality heater: 3-5 watts per gallon is standard
- •Check daily: Use a reliable thermometer (digital preferred)
- •Summer heat: Use fans or chillers if room temp exceeds tank needs
- •Match water changes: New water should be within 2°C of tank water